In the abstract, the Kalshnikov is interesting as a design which scaled well and that provided the right set of design trade-offs to remain a viable choice among small arms for more than half a century.
Ten years later Korobov tried again with the 517 rifle, but again Kalashnikov prevailed with the AKM because of its commonality with the vast installed-base of AKs.
TKB was prone to jams and had worse accuracy than the AK prototype. It also looked ugly. So the better design won, although it sounds dull ;)
With enough non-lethal weapons, it might make abuse of government power more likely, not less - training mace sprays and tazers on protesters is more acceptable than just mowing them down with bullets, but disperses crowds just as well.